CustomDatumExample.java does not work for more than 2 attributes

Question

The CustomDatumExample.java only works
if the Employee object has 2 attributes -
(EmpName and EmpNo). If I try to add
another attribute to the Employee object I get java.lang.ArrayIndexOutOfBoundsException: 2 on the getAttr3 method.
Anyone know why?
Employee object
CREATE TYPE employee AS OBJECT
empname VARCHAR2(50),
empno INTEGER,
attr3 VARCHAR2(50)
Custom object class
public class Employee implements CustomDatum, CustomDatumFactory
public static final String SQLNAME = "EMPLOYEE";
public static final int SQLTYPECODE = OracleTypes.STRUCT;
MutableStruct _struct;
static int[] _sqlType =
12, 4
static CustomDatumFactory[] _factory = new CustomDatumFactory[3];
static final Employee _EmployeeFactory = new Employee();
public static CustomDatumFactory getFactory()
return _EmployeeFactory;
/* constructor */
public Employee()
struct = new MutableStruct(new Object[3], sqlType, _factory);
/* CustomDatum interface */
public Datum toDatum(OracleConnection c) throws SQLException
return struct.toDatum(c, SQL_NAME);
/* CustomDatumFactory interface */
public CustomDatum create(Datum d, int sqlType) throws SQLException
if (d == null) return null;
Employee o = new Employee();
o._struct = new MutableStruct((STRUCT) d, sqlType, factory);
return o;
/* accessor methods */
public String getEmpname() throws SQLException
{ return (String) _struct.getAttribute(0); }
public void setEmpname(String empname) throws SQLException
{ _struct.setAttribute(0, empname); }
public Integer getEmpno() throws SQLException
{ return (Integer) _struct.getAttribute(1); }
public void setEmpno(Integer empno) throws SQLException
{ _struct.setAttribute(1, empno); }
public String getAttr3() throws SQLException
{ return (String) _struct.getAttribute(2); }
public void setAttr3(String attr3) throws SQLException
{ _struct.setAttribute(2, attr3); }
null

Answer 1

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Hope this help
Massimo
(Mod note: Edited for guideline compliance.)